Ramp speed integrated motor controller for sewing machines

Sewing – Elements – Starting or stopping

Patent

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Details

318778, D05B 6918

Patent

active

041855752

ABSTRACT:
A fixed speed sewing machine is disclosed having only start and stop control capability for the actual running of the machine. An arrangement is provided for controlling the acceleration of the sewing machine drive motor so that it is gradual, rather than abrupt.

REFERENCES:
patent: 3573580 (1971-04-01), Shinozaki
patent: 3799084 (1974-03-01), Furnari
patent: 4092937 (1978-06-01), Landau, Jr. et al.
patent: 4150634 (1979-04-01), Brown et al.

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